-- Last Updated: Feb-03-13 5:20 PM EST --
The Tempest series are all very good all round boats. The one that you find most comfortable is the one for you.
You will find your preferred fit will evolve. I went from loose to tight back to loose. I have 3 points of contact available when needed, but like to be able to move in my cockpit.
I'm 6', 175-180 and have paddled both a 165 and 170. The 170 is perfectly fine though I like the feel of the 165 better than the 170 as it is livelier.
There are a lot of very good boats out there. The Tempest series is the most broadly available that are supportive of growing an array skills and are wholly capable boats. In recent years for those looking for their first 'serious' kayak I've recommended a Tempest more often than any other model. I don't own a Tempest nor do I sell boats. IMHO everyone who wants to have fun in a sea kayak should have a Romany at some point in their paddling lives ;-)